Radwanska beats Li in Wimbledon quarterfinals

Agnieszka Radwanska of Poland plays a return to Li Na of China in a Women’s singles quarterfinal match at the All England Lawn Tennis Championships in Wimbledon, London, Tuesday, July 2, 2013. AP Photo/Kirsty Wigglesworth

LONDON — Agnieszka Radwanska downed China’s Li Na in an epic Wimbledon quarter-final on Tuesday between the top two seeds to reach the last eight.

The Polish fourth seed, last year’s beaten finalist, beat the sixth seed 7-6 (7/5), 4-6, 6-2 in a two-hour, 43 minute contest on Center Court.

Radwanska plays German 23rd seed Sabine Lisicki, the conqueror of defending champion Serana Williams in the fourth round, in the semifinals on Thursday.